20+ Senior QA Engineer -Software Testing Interview Questions and Answers

Difference between DDL and DML and finding total links on a page via xpath

• DDL (Data Definition Language) is used to define the database schema, while DML (Data Manipulation Language) is used to manipulate data within the schema

• DDL statements include CREATE, ALTER, DROP, TRUNCATE, etc. while DML statements include SELECT, INSERT, UPDATE, DELETE, etc.

• To find total links on a page via xpath, use the following xpath expression: 'count(//a)'

Validations for data migration project

• Verify data completeness and accuracy

• Check for data consistency and integrity

• Ensure data mapping and transformation is correct

• Validate data security and privacy

• Test data migration process end-to-end

Our QA process involves continuous testing throughout the development cycle.

• We start with creating test plans and test cases based on requirements.

• We perform functional, regression, and performance testing.

• We use both manual and automated testing methods.

• We report and track defects using a bug tracking tool.

• We collaborate with developers to resolve issues and retest fixes.

• We conduct user acceptance testing before release.

• We continuously improve our process based on feedback a...read more

Cypress is a JavaScript-based end-to-end testing framework. Automation tool selection criteria depend on factors like project requirements, budget, and team expertise.

• Consider the project requirements and choose a tool that can meet those requirements

• Evaluate the budget and choose a tool that fits within the budget

• Assess the team's expertise and choose a tool that the team is comfortable using

• Consider the tool's features and capabilities, such as cross-browser testing and mob...read more

SDLC cycle is a process followed by software development teams to design, develop, test, and deploy high-quality software.

• SDLC stands for Software Development Life Cycle

• It is a framework that outlines the various stages involved in software development

• The stages include planning, design, development, testing, deployment, and maintenance

• The significance of SDLC is that it helps ensure that software is developed efficiently, with high quality, and meets the needs of stakeholder...read more

Developing an automation framework poses challenges in terms of design, implementation, and maintenance.

• Designing a flexible and scalable framework architecture

• Selecting appropriate tools and technologies

• Ensuring compatibility with different platforms and environments

• Handling dynamic UI elements and synchronization issues

• Maintaining the framework codebase and keeping it up-to-date

• Integrating with other testing tools and frameworks

• Handling exceptions and errors gracefully

• Ensur...read more

SQL query to retrieve employee and manager name from employee table

• Join employee table with itself using manager ID

• Select employee name and manager name from the joined table

Demonstration of Selenium WebDriver using Java

• Create a new WebDriver instance

• Navigate to a webpage using get() method

• Locate elements using findElement() method

• Perform actions on elements using click(), sendKeys() methods

• Assert results using assertions

• Close the browser using close() method

Regression testing ensures existing functionality still works after changes. Sanity testing checks critical functionality.

• Regression testing is done after changes to ensure existing functionality still works

• Sanity testing is done to check critical functionality after minor changes

• Regression testing is comprehensive while sanity testing is narrow in scope

• Example of regression testing: testing all existing features after a software update

• Example of sanity testing: testing login...read more

Locators used in Selenium are used to identify web elements on a web page.

• Selenium supports various locators such as ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, and XPath.

• ID and Name locators are the most commonly used locators in Selenium.

• CSS Selector and XPath locators are more powerful and flexible than other locators.

• Example: driver.findElement(By.id("elementID"));

Parallel execution in Selenium and Revert string

• Parallel execution in Selenium allows running multiple test cases simultaneously

• It helps in reducing the overall execution time

• Revert string means reversing the order of characters in a string

• In Java, we can use StringBuilder or StringBuffer class to reverse a string

Test case review is essential for ensuring quality software. Joining Tradeindia offers a challenging and rewarding career opportunity.

• Test case review helps identify defects and improve software quality

• Joining Tradeindia provides a chance to work on complex projects and learn new skills

• Tradeindia offers a supportive work environment and opportunities for career growth

• Being part of Tradeindia's team allows for making a positive impact on the business and customers

• Joining Trade...read more

Inheritance is a mechanism in object-oriented programming where a class acquires the properties of another class.

• Inheritance allows for code reusability and promotes a hierarchical organization of code.

• The class that is being inherited from is called the superclass or parent class, while the class that inherits is called the subclass or child class.

• The subclass can access all the public and protected methods and variables of the superclass.

• For example, a class Animal can be a...read more

Cucumber options are used in software testing frameworks to configure and customize the behavior of Cucumber tests.

• Cucumber options are specified in the 'cucumber.options' property in the command line or configuration file.

• Some commonly used options include specifying the feature files or tags to run, defining the output format, and setting the glue code location.

• For example, to run only the scenarios tagged with '@smoke' and generate a JSON report, the option would be '--tag...read more

Regression testing is the process of retesting modified software to ensure that the existing functionalities are not affected.

• It is performed after making changes to the software to ensure that the changes do not introduce new bugs or issues.

• It helps in identifying any unintended side effects of the changes made.

• Regression test cases are typically derived from the existing test cases.

• It ensures that the software remains stable and reliable after modifications.

• Examples: retest...read more

Smoke testing is a preliminary testing technique to quickly evaluate the basic functionality of a software application.

• Smoke testing is performed to ensure that the critical functionalities of the software are working as expected.

• It is a subset of regression testing and focuses on testing the major features of the application.

• Smoke tests are usually executed after a build is deployed to check if it is stable enough for further testing.

• The purpose of smoke testing is to identi...read more

I have experience in implementing and improving software testing processes in my previous company.

• Implemented a structured testing process that improved the quality of the software

• Introduced automation testing to reduce manual effort and increase efficiency

• Conducted regular training sessions for the team to keep them updated with the latest testing techniques

• Collaborated with development and product teams to ensure timely delivery of high-quality software

• Regularly reviewed an...read more

Reverse each word in a sentence

• Split the sentence into words

• Reverse each word using built-in function or loop

• Join the reversed words back into a sentence

Priority is the order in which defects should be fixed, while severity is the impact of a defect on the system.

• Priority determines the order in which defects should be fixed, based on business needs and requirements.

• Severity measures the impact of a defect on the system, ranging from critical to low.

• Priority is subjective and can vary based on project goals and timelines.

• Severity is objective and can be measured based on the impact on functionality or user experience.

• For exam...read more

Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.

• Testing is done to identify defects or errors in software

• It involves executing a system or application with the intent of finding bugs

• Testing can be done manually or through automated tools

• Types of testing include functional, performance, security, and usability testing

Web table elements can be handled using various methods like XPath, CSS selectors, and Selenium commands.

• Identify the table element using its HTML tag and attributes

• Use Selenium commands like findElement() and findElements() to locate the table element

• Use XPath or CSS selectors to locate specific rows or columns within the table

• Perform actions like clicking on a cell or extracting text from a cell using Selenium commands

• Verify the data in the table using assertions or compari...read more

STLC and SDLC are software development methodologies while testing techniques include functional, non-functional, and automation testing.

• STLC (Software Testing Life Cycle) is a process of testing software from planning to deployment.

• SDLC (Software Development Life Cycle) is a process of developing software from requirement gathering to maintenance.

• Functional testing ensures that the software meets the functional requirements.

• Non-functional testing includes performance, securi...read more

Cannot answer without knowing the java program

• Need to know the code to determine output

• Output can vary based on input and logic

• Can provide answer if given the program

API methods are functions that allow communication between different software systems.

• GET: retrieves data from a server

• POST: sends data to a server to create a resource

• PUT: updates an existing resource on a server

• DELETE: removes a resource from a server

• PATCH: updates a part of an existing resource on a server